Gold from the perspective of this 4-hour K-line chart shows a very typical "breakdown selling" pattern.

The Bollinger Bands have shifted from support to resistance with an opening downward, which is a classic signal of an established bearish trend. The price has broken through both the middle band and lower band, indicating extremely heavy selling pressure above with bulls having no counter-attack power.

The last K-line directly broke through the 4300 round number level, with the lowest reaching 4124. The appearance of this "long lower shadow" often suggests that buyers are stepping in below, but it could also be a "short squeeze trap" or "panic selling" emerging.

Although KDJ is at low levels, the J-line still shows signs of downward divergence; MACD has formed a death cross pointing downward with expanding green columns, indicating that downward momentum has not yet exhausted, and the "bottom" remains unclear for now.

When the Bollinger Bands open downward and price breaks through the lower band, "rebounds become opportunities to short."

Today's suggestion: For rebounds near 4300-4370, consider taking short positions; downside target 4175-4120, if previous lows break, continue watching 4050-4000.